IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-07-31 03:03:13 V 20 31 38.00 +19 19 08.6 14.3 V 247
2021-07-31 03:03:13 v 1 272.10087 +43.08037 – – 247
2021-07-31 03:05:12 V 20 31 38.27 +19 19 22.8 14.1 V 247
2021-07-31 03:05:12 v 1 272.10087 +43.08037 – – 247
2021-07-31 04:57:36 V 20 31 51.23 +19 31 46.5 14.6 V 247
2021-07-31 04:57:36 v 1 272.10087 +43.08037 – – 247
2021-07-31 04:58:36 V 20 31 51.36 +19 31 51.7 14.6 V 247
2021-07-31 04:58:36 v 1 272.10087 +43.08037 – – 247
2021-07-31 04:59:35 V 20 31 51.51 +19 31 59.5 14.2 V 247
2021-07-31 04:59:35 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:00:35 V 20 31 51.63 +19 32 06.4 14.5 V 247
2021-07-31 05:00:35 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:02:34 V 20 31 51.84 +19 32 18.4 14.3 V 247
2021-07-31 05:02:34 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:04:33 V 20 31 52.07 +19 32 31.1 14.4 V 247
2021-07-31 05:04:33 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:05:33 V 20 31 52.20 +19 32 37.1 14.4 V 247
2021-07-31 05:05:33 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:06:32 V 20 31 52.38 +19 32 45.1 14.9 V 247
2021-07-31 05:06:32 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:07:32 V 20 31 52.43 +19 32 49.8 14.6 V 247
2021-07-31 05:07:32 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:08:31 V 20 31 52.55 +19 32 58.1 14.5 V 247
2021-07-31 05:08:31 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:09:31 V 20 31 52.68 +19 33 05.7 14.0 V 247
2021-07-31 05:09:31 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:11:30 V 20 31 52.86 +19 33 18.7 13.8 V 247
2021-07-31 05:11:30 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:12:30 V 20 31 52.93 +19 33 22.9 13.8 V 247
2021-07-31 05:12:30 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:16:28 V 20 31 53.50 +19 33 50.7 13.2 V 247
2021-07-31 05:16:28 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:24:24 V 20 31 54.37 +19 34 42.7 13.5 V 247
2021-07-31 05:24:24 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:26:24 V 20 31 54.54 +19 34 54.5 13.1 V 247
2021-07-31 05:26:24 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:27:23 V 20 31 54.70 +19 35 01.3 13.1 V 247
2021-07-31 05:27:23 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:35:20 V 20 31 55.56 +19 35 53.4 13.1 V 247
2021-07-31 05:35:20 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:36:19 V 20 31 55.71 +19 36 00.5 13.1 V 247
2021-07-31 05:36:19 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:38:02 V 20 31 55.82 +19 36 10.9 13.1 V 247
2021-07-31 05:38:02 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:41:43 V 20 31 56.32 +19 36 35.7 13.1 V 247
2021-07-31 05:41:43 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:43:42 V 20 31 56.52 +19 36 47.4 13.1 V 247
2021-07-31 05:43:42 v 1 272.10087 +43.08037 – – 247
2021-07-31 05:46:41 V 20 31 56.91 +19 37 07.8 13.1 V 247
2021-07-31 05:46:41 v 1 272.10087 +43.08037 – – 247
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)